Engine



P... J.YB0RIS.

2 Sheets-Sheet '1.

(No Model.)

ROTARY ENGINE.

'Nq-664mm 'Patented' Mal-yal 1893( n (lt/komma 2 Shets Sheet 2./

i KNOModel.) f

`P. J. BORIS.

ROTARY ENGINE.

No. 604,960; Patented May 31,1898.

35 oli' the :headlast passes 'fromthe inlet to thel v. i acitiz-en,ofithepY Y nited-StatesQ-residin g at Boston, in the county. oli SulolkandState .of Massachu setts,hav.e inventedacertai n newandusef f ul-Im provemengts ixnRotary Engines; and l do hele'bydeclare .the fellewingtoghefa full clean andexactfdescriptionoffth "n vehtion, such as will enable .otherSki-llexlgintheart tcwh ich it appertainsjtoimake:.andansesthe fsame.- This invention1v relatesfto` laa novel rota ry engine,f andhas-for itsnobjectfthe production of I z' aixnple; durable, andfeicient motorro'f this class in which; fbet'hitheaiorceiof..the impact and compression .ofytheglive steam andthe eipansionof. t'liesteam 'llt sithasjbeen cut olf are utilized, in lWhic thei c'utroftis' .automati i@a,11y-.effe@rea,.,and.; Wemmel@ =deans. 0f construction aresuch thatleakage -or waste Ofisteam ispelented:andthcthorough lubrif Tol.; the. l* accom plish-ment; of: the above and 1 other objects 'subordinateflzheretoi:the in-venl tioncon'sists inprovidinga cylindricalcasin g with an yaxially,-locatecll shaftrupen( which is keyed Within the casingvor cylinderla rotary A. headV provided with a/seriesof :pivotedf heads,

1- againstwwhich xlive steamiisidirected over diain'letsand'designed-:tothe actuated alternately theasteam-supplyrte permitffutilization of the expansionfduring;a;portionfof.the,movement exhaust;wtherrelatioroatlie parts .being such .i thatwhile the steam srbcin-g admitted through vone inlet-the yvalve inthe futher inlet will be .allylopposite idei Steam. :gif

p, szbeingaetedo'nby `the'live .1' Referring.toithez'dralvingd *is-a kside elevation offmy eugineaproperln: Figzis acen-l traiverticalsectiomtlieretlrrough -Figi''isi a' 1. centralnvertical seetiem-:takeif"atri-fr Fig.- 5 yisI noms, or BOSTON, MASSACHUSETTS,

u'oTARY ENGINEQ,

i the. headcarrier and heads constituting latterfasvwill presently appear.

on` the'I dia/metric# Off? cams,

v sfncr' lrennen-ifcnnrln'*geert0f Letters Pac-enc No. 604,960, steamy 31,1898. petite 17,1897. sermugfcaaoets. cumulus' and Fig. 6 `is a sectional'vieu7 on aline '6 6 of Fig. 6. 4 Referring to the numeral lindicates an open-sided cylin- `drical casing mounted upon a suitable stand 2 and provided with a cover or head 3, bolted or otherwise secured. to the open side .of the 'casingto complete what may be termed the ,cylinder. of theengiue. 7

4r indicates a powerl-shaft-comprising .the

cylinder-axle and surrounded by packingthe numerals of. the drawings,

glands 5, located in the heads of the piston. I

6 indicates the piston ofthe engine, which isv composed of a pair of circular plates 7,

fitting. closelywithin the cylinderrand located inder and provided with a circumferential serie'sof head-sockets 9, in which arevmounted piston-heads 10 constructed and designed to be actuated ina manner to be described. 11 and 12 indicate a pair of abutments selcured' to the inner periphery of the cylinder diametrically opposite each other by bolts or the like and. designed to partly fill the space between the plates 7 and the peripheryoi the ,head-carrier and the inner periphery of the cylinder and through which extend forwardly :curved steam-inlets 13 and 14, controlled by rotary valves 15 and 1G, the branches 17 and '18 of asteain-pipe 19 comprising a cylinder communioati'ng'with the inlets, as illustrated. The effectiveness of these abutxnents will be 'Well understood', since it is obvious that in:

order to rotate the piston under steam-pressu're the steam must be confined between fixed andmcvableelements` the abntments i, ,i-Itfwillibe. .observed that ingordertocause .theferpansiveffdrcesof the -steam to .beexf erted-ruponygthe'piston it is necessary that cb- ;structions kbeyplaced Within the" passages exi lLtending'"frombetween theabutxnents upon theopposite sides of the vhead-carrieig-and it is vfor the-.purpose of providing such obstructionsand in a manner which will permit of their rctractions into the plan ot the peripher)- et the head-carrier that I have provided the heads l0, that I have constructed as illus-l trated. These heads are disposed in the same direction and are formed with a curved impactplate 2O at their free ends and pivoed, as by pintles 2l, located at their forward ends, side plates 22 being provided, extending culwise and of an extent corresponding to the dimensions et the impact-plate and thehead proper to form the heads into substantially cup or receptacle shape, and pivoted members designed to bc forced outwardly by springs 23, of any suitable form, located'i'ntermediate of the abut'rncnts of the sockets 9 and the heads lO. The impact-plates 2O are curved concentric with the pintles 2l, and a steamtight joint is formed between the impactplate and the contiguous face of the socket by a packing-plate 2i eceentrically with respect to the pintlc and having a sha-rp edge 25, which bears against the impact-plate and permits the same to move` under the impulse of the spring without allowing the escape of the steam around the head into the socket.

2G indicates a limiting-flange upon the free end et the head, designed to seat in recesses 27, formed by the outer edge of the plate 26 and the contiguous portion ot the socket i). This organization ol elements permits the several heads which are curved in a degree corresponding to the degr of curvature of the head-carriers to lie concentric with the head-carriers and to permit heads to constitute portions of a continuous unbroken cylindrical surface, It will new be observed t iat as the piston rotates the heads vill he successively orved into the sockets by passing under the inner faces ot the abutxnents, antilriet/ional rollers being' provided t0 reduce thefrictional contact to a minimum, and that as soon as the heads have passed from under the abutmcnts upon the opposite .side they will swingY outwardly upon the irnpulse et the springs 22%, and the edge of the liangc lt' will eonttctwith the inner periphery ot' the casing, the side plates of he head being in steam-telit contact with the inner faces ol' the. plat l.

In order that the steam as it escapes from the inlets inte the steam-space in Contact with the head may not pass around thclatter during the outward movements of the heads when released h v the abntments, the end laces et the almtinents-ll and lil are curved in atic'frcc e .1iicspoiili1igto the Curve described bl heads as they swing outward ly upon their pivots when being carried forward hy the piston. Thus, supposing the i gine to no inthe position indicated in Fig.

the stema will he admitted from the steampe .l7 into the inlet-port 13 and will pass whence, the valve l heinyvr open, to the interior ol' the cylinder, where its energy will be cxlg-rted upon the impact plate or tace 20 of the adjacent head, which has just been released by the abutmentsand is swinging to its outward position. .ly referring tothe epposite side of the engine, however, it wilt he seen that the head which has just passed the abutment l2 is beiner propelled under the expansion of the steam which has previously been admitted through the inlet ll and that the valve 1G is n'ow closed. Thus while the head adjacent to the inlet lil is propelled under the impulse of live steam the dia-metrically opposite head is being subjected to the expansive energy of the steam that its adjacent inlet-valve closed or eut on'. This relation of the parts is maintained continuously but alternately, each head receiving,` live steam through, say, for instance, one -third o its movement toward the exhaust-port, and being driven the remainder of itstravel under expansion until it passes either of the exhaust-ports 2f), located diametrioaiiy opposite each other and adjacent tothe rearends of each of the abutments. It is a fact, how'- ever, that in order to partly open and close the valves l5 and 1G to effect this alternative feed and cut-olf of the' steam at the opposite sides of the engine diametrically-revolving actuating mechanism must be employed, and its connection must depend upon the movement of the piston, for the reason that the latter determines the position ot the heads with respect to the abutments at all times. The controlling-valves l5 and lf? are of eylindrical form and are journaled in anysuitable manner, all the abutments beingr provided with transvcrsc steam -ports .'50 and shafts 3l, upon the outer extremities of which are located valve cams 32, located withinslightly-elongatcd recesses Sil in the face of the abutment contiguous to one of the plates 7. \Vithin the recesses Ill), a suitable distance in advance of the valve-cam,arc pi votally mount ed cut-ott cams 3l, one being provided in its relation to each of the valve-cams and linked thereto, as by links 35. One of the ahntments is'likcwise provided with a longitudinallyextending,r linked recess 3G, designed for the reception of horizontally-extcnding pins or rollers 37, carried by one of the plates 7 and designed at the proper time to actuatc the valve-cam to open the valve and thereby permit the ingress ot' live steam to the interior et' the cylinder, as illustrated in the upper view ot' Fig. As the pin' passes the cam the adjacent head is receiving.,r tl a impact ot live steam and tends to do so until the pin or roller 37 contacts with the cam 34:, when, as will be obvious, the latter will be rotated and through. the link 35 will cause the rotation of the cam 32 in the direction to close the Valve, and the cut-off of the steam will thereby be effected at a time determined by the distance between the valve` and cutolt cams, and if it is desired that the head shall receive live steam di ing more than one-third of its Atravel between the ingress and egress ports it is simply vnecessary to change the distance between the valve-cam and the cut-oit cam in order that the eut-oil IOO IIO

604,960, v i. 'i I' a may be eected and-will operate. The exhaustports 29 are connected with a suitable exhaust-pipe 37, the steam-pipe 19 is provided with a throttle-valve 38, and the engine is complete. l

In conclusion it may be stated that the valves and valve-actuatin g mechanism are so arranged relatively that Whenever one valve is open the other is closed, that Whenever one head is bei-ng driven under theimpuse of livemodify, or vary them at will within the scope of iny` invention.

IIaving thus described my invention, what Iclaim as new, and desire to secure by' Letters Patent, is

1. In a rotary engine, the combination with a cylinder, a shaft, a'rotary piston on the latter, of a series of pivoted heads carried by.

the said piston, diametrically-disposed abutments Within the cylinder having curved steam-passages therein runningin reverse di-v rections, valves controlling the said steam passages, cams for operating the said valves, means carried by the saidpiston for actuating the Ivalves and. cams, and diametrically-opposed exhausts situatedintermediate the said abutments.

2. The combination with a cylinder pro'- vided with ingress and exhaust ports, [of a shaft, a rotary piston on said shaft provided with a series of pivoted piston-heads, valves controlling the in gress-ports, valve-cains counected to said valves, independently-pivoted cut-o cams connected to said val.'eca1ns,and

'means carried by the -said piston for actuat-` ing the valves and Valve-cams automatically in alternation, substantiallyas specified.

3. The combination with a cylinder provided with diametrically-opposed abutment-s having steam-passages therein running in reverse-directions therethrough and adapted to be alternately opened and closed, antifrictional rollers carried by the said abntrnents, and valves controlling the said steam-passages, of a rotary piston consisting of circular plates movable upon the opposite sides of the i.

-abutments, a cylindrical head-carrier intermediate the plates, a series of spring-actuated pivoted heads on the saidhead-carrier adapted to be automatically forced outwardly and. moved inwardly by the said abutment-s, and pins or rollers on the said plates for operating -the said valves, substantially as specified.

4. The combination with a cylinder provided with ingress-ports and exhaust-ports, of rotary controlling-valves in the ingress ports, valve-cams connected thereto, independently-pivoted cutoi cams in advance ofthe valve-cams, links intermediate of the cutoff valve-cams, 4a rotary piston and means carried thereby for. successively actuating the valve and cut-off calns, substantially asspecified.

PIERRE JULIEN llOlllS.

Witnesses:

WILLARDAMns,l WinLIAM J oscELyN. 

